City Of Shenandoah STP
Shenandoah, IA 51601 · Fremont County · Publicly Owned Treatment Works
- Average flow
- 1.1 MGD
- Design flow
- 5.4 MGD
- NPDES permit
- IA0032328
- Effective
- Permit expires
- January 2027
- Population served
- 5,824
- CWNS 2022
City Of Shenandoah STP is a publicly owned wastewater treatment works in Shenandoah, Fremont County, Iowa treating an average of 1.1 million gallons per day against a permitted design capacity of 5.4 MGD, serving about 5,824 residents. It discharges under NPDES permit IA0032328 (effective), which expires in January 2027, with 74 recorded violations in the last three years.
Treatment technology
4 treatment structures and unit processes identified at City Of Shenandoah STP.
Available with a free Klarifi account
See the full treatment train at City Of Shenandoah STP: structures, unit processes and planned upgrades, with exact unit counts.
Compliance snapshot (last 3 years)
- Total violations
- 74
- Effluent violations
- 74
Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.
Industrial users and pretreatment
Industries that discharge process wastewater to City Of Shenandoah STP, from the plant's pretreatment programme records.
- Industrial users
- 2
- on record
On record: Americana Mfg CO INC (Shenandoah); Green Plains Ethanol Storage, Llc (Gp Shenandoah) (Shenandoah). Most users are in chemicals, plastics and petroleum and metal finishing and plating.
Unlock the details behind these industrial users
Discharge flow, federal category, source documents and contacts for every industrial user of City Of Shenandoah STP. Free with a Klarifi account.
Key contacts
1 verified contact for City Of Shenandoah STP, with validated emails and direct phone numbers.
Unlock 1 verified contact
Names, validated emails and direct phone numbers for decision-makers at City Of Shenandoah STP, plus the full compliance history and discharge data.
Nearby wastewater treatment plants in Iowa
Essex · 6 mi away
0.11 MGD
Farragut · 6 mi away
0.05 MGD
Riverton · 11 mi away
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Randolph · 12 mi away
—
Coin · 12 mi away
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Sidney · 13 mi away
0.04 MGD
Tabor · 16 mi away
0.04 MGD
Emerson · 17 mi away
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City Of Shenandoah STP: frequently asked questions
Sources and methodology
Flow, permit and violation figures come from the EPA's ICIS-NPDES discharge monitoring records. Population served comes from the Clean Watersheds Needs Survey 2022. Treatment structures are identified by Klarifi's review of aerial imagery, and capital improvement projects are extracted from published municipal budget documents. Violations are counted over the last three years of monitoring reports.
Data refreshed October 26, 2026; facility record last updated September 16, 2026.
Wastewater terms: POTW · MGD · NPDES permit · Inflow and infiltration · Oxidation ditch · Anaerobic digester · all terms